定义员工类，具有姓名、年龄、性别属性，并具有构造方法和显示数据方法。
定义管理层类，继承员工类，并有自己的属性职务和年薪。
定义职员类，继承员工类，并有自己的属性所属部门和月薪。
class Employee {
private String name ;
private int age ;
private String sex ;
public Employee() {}
public Employee(String name,int age,String sex) {
this.name = name ;
this.age = age ;
this.sex = sex ;
}
public String getInfo() {
return "姓名：" + this.name + "、年龄：" + this.age + "、性别：" + this.sex ;
}
}
class Manager extends Employee { // 管理层
private String job ;
private double income ;
public Manager() {}
public Manager(String name,int age,String sex,String job,double income) {
super(name,age,sex) ;
this.job = job ;
this.income = income ;
}
public String getInfo() {
return "【管理层】" + super.getInfo() + "、职务：" + this.job + "、年薪：" + this.income ;
}
}
class Staff extends Employee {
private String dept ;
private double salary ;
public Staff() {}
public Staff(String name,int age,String sex,String dept,double salary) {
super(name,age,sex) ;// 调用父类构造方法
this.dept = dept ;
this.salary = salary ;
}
public String getInfo() {
return "【职员】" + super.getInfo() + "、部门：" + this.dept + "、月薪：" + this.salary ;
}
}
public class HelloWorld {
public static void main(String args[]) {
Manager man = new Manager("张三",38,"女","主管",150000.00) ;
Staff sta = new Staff("李四",18,"男","出纳",3000.00) ;
System.out.println(man.getInfo()) ;
System.out.println(sta.getInfo()) ;
}
}